LG CM7420, CM7520, CM7520-AU, CM7420-AU User Manual
OWNER’S MANUAL
Mini Hi-Fi System
Please read this manual carefully before operating your set and retain it
for future reference.
CM7520 (CM7520, CMS7520F/W)
CM7420 (CM7420, CMS7520F)
1 Getting Started
Getting Started2
Safety Information
1
Getting Started
CAUTION: TO REDUCE THE RISK OF ELECTRIC
SHOCK DO NOT REMOVE COVER (OR BACK) NO
USER-SERVICEABLE PARTS INSIDE REFER SERVICING
TO QUALIFIED SERVICE PERSONNEL.
WARNING: TO PREVENT FIRE OR ELECTRIC SHOCK
HAZARD, DO NOT EXPOSE THIS PRODUCT TO RAIN
OR MOISTURE.
WARNING: Do not install this equipment in a
conned space such as a book case or similar unit.
CAUTION: Do not block any ventilation openings.
Install in accordance with the manufacturer’s
instructions.
Slots and openings in the cabinet are provided for
ventilation and to ensure reliable operation of the
product and to protect it from over heating. The
openings shall be never be blocked by placing
the product on a bed, sofa, rug or other similar
surface. This product shall not be placed in a builtin installation such as a bookcase or rack unless
proper ventilation is provided or the manufacturer’s
instruction has been adhered to.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
This lightning ash with arrowhead
symbol within an equilateral triangle
is intended to alert the user to the
presence of uninsulated dangerous
voltage within the product’s
enclosure that may be of sucient
magnitude to constitute a risk of
electric shock to persons.
The exclamation point within an
equilateral triangle is intended
to alert the user to the presence
of important operating and
maintenance (servicing) instructions
in the literature accompanying the
product.
CAUTION: This product employs a Laser System.
To ensure proper use of this product, please read
this owner’s manual carefully and retain it for future
reference. Shall the unit require maintenance,
contact an authorized service center.
Use of controls, adjustments or the performance of
procedures other than those specied herein may
result in hazardous radiation exposure.
To prevent direct exposure to laser beam, do not
try to open the enclosure.
CAUTION concerning the Power Cord
Most appliances recommend they be placed upon
a dedicated circuit;
That is, a single outlet circuit which powers only
that appliance and has no additional outlets or
branch circuits. Check the specication page of this
owner’s manual to be certain. Do not overload wall
outlets. Overloaded wall outlets, loose or damaged
wall outlets, extension cords, frayed power cords, or
damaged or cracked wire insulation are dangerous.
Any of these conditions could result in electric
shock or re. Periodically examine the cord of your
appliance, and if its appearance indicates damage
or deterioration, unplug it, discontinue use of the
appliance, and have the cord replaced with an
exact replacement part by an authorized service
center. Protect the power cord from physical or
mechanical abuse, such as being twisted, kinked,
pinched, closed in a door, or walked upon. Pay
particular attention to plugs, wall outlets, and
the point where the cord exits the appliance. To
disconnect power from the mains, pull out the
mains cord plug. When installing the product,
ensure that the plug is easily accessible.
This device is equipped with a portable battery or
accumulator.
Safety way to remove the battery or the
battery from the equipment: Remove the
old battery or battery pack, follow the steps
in reverse order than the assembly. To prevent
contamination of the environment and bring on
possible threat to human and animal health, the
old battery or the battery put it in the appropriate
container at designated collection points. Do
not dispose of batteries or battery together with
other waste. It is recommended that you use
local, free reimbursement systems batteries and
accumulators. The battery shall not be exposed to
excessive heat such as sunshine, re or the like.
CAUTION: The apparatus shall not be exposed to
water (dripping or splashing) and no objects lled
with liquids, such as vases, shall be placed on the
apparatus.
You have to set the disc format option to [Mastered]
in order to make the discs compatible with the LG
players when formatting rewritable discs. When
setting the option to Live File System, you cannot
use it on LG players.
(Mastered/Live File System : Disc format system for
Windows Vista)
Getting Started 3
1
Getting Started
Table of Contents4
Table of Contents
1 Getting Started
2 Safety Information
6 Unique Features
6 Accesories
6 Playable file Requirement
6 – MP3/WMA music file requirement
6 – Compatible USB Devices
6 – USB device requirement
7 Remote control
8 Front panel
10 Rear panel
2 Connecting
11 Connecting to speakers
11 – Attaching the speakers to the unit
12 Optional Equipment Connection
12 – AUX IN Connection
12 – PORT. IN Connection
13 – USB Connection
13 – Antenna Connection
3 Operating
14 Basic Operations
14 – CD/USB Operations
15 – Selecting a folder and an MP3/WMA
file
15 – Deleting an MP3/WMA file
16 Other Operations
16 – Programmed Playback
16 – Turn off the sound temporarily
16 – AUTO DJ playback
17 – Displaying file information (ID3 TAG)
17 – DEMO
17 – Using Microphone
18 Radio Operations
18 – Listening to the radio
18 – Presetting the Radio Stations
18 – Deleting all the saved stations
18 – Improving poor FM reception
19 Sound adjustment
19 – Setting the surround mode
19 – Setting the USER EQ
20 Setting the Clock
20 – Using your player as an alarm clock
20 – Sleep Timer Setting
20 – Dimmer
21 Advanced Operations
21 – Listening to music from your portable
player or external device
21 – Woofer ON/OFF (CM7520)
21 – Recording to USB
22 – Dubbing USB to USB
4 Troubleshooting
23 Troubleshooting
23 – General
5 Appendix
24 Trademarks and Licenses
25 General specifications
26 Speaker specifications
27 Maintenance
27 – Notes on Discs
27 – Handling the Unit
Table of Contents 5
1
2
3
4
5
Getting Started6
Unique Features
Portable In
1
Getting Started
Listens to music from your portable device. (MP3,
Notebook, etc)
USB Direct Recording
Records music to your USB device.
Accesories
Please check and identify the supplied accessories.
FM Antenna (1) AM Antenna (1)
Remote Control (1) Batteries (2)
Playable file
Requirement
MP3/WMA music file
requirement
MP3/WMA le compatibility with this unit is limited
as follows.
Sampling frequency : within 32 to 48 kHz (MP3),
y
within 32 to 48 kHz (WMA)
Bit rate : within 32 to 320 kbps (MP3),
y
40 to 192 kbps (WMA)
Maximum les : Under 999
y
File extensions : “.mp3”/ “.wma”
y
CD-ROM le format : ISO 9660/ JOLIET
y
yWe recommend that you use Easy-CD Creator,
which creates an ISO 9660 le system.
Compatible USB Devices
MP3 Player : Flash type MP3 player.
y
USB Flash Drive :
y
Devices that support USB2.0 or USB1.1.
The USB function of this unit does not support
y
all USB devices.
USB device requirement
Devices which require additional program
y
installation when you have connected it to a
computer, are not supported.
yDo not extract the USB device while in operation.
For a large capacity USB, it may take longer than
y
a few minute to be searched.
yTo prevent data loss, back up all data.
If you use a USB extension cable or USB hub, the
y
USB device is not recognized.
Using NTFS le system is not supported. (Only
y
FAT(16/ 32) le system is supported.)
This unit is not supported when the total
y
number of les is 1 000 or more.
External HDD, Card readers, Locked devices, or
y
hard type USB devices are not supported.
yUSB port of the unit cannot be connected to PC.
The unit cannot be used as a storage device.
Getting Started 7
Remote control
Battery Installation
• • • • • •
(POWER) : Switches the unit
1
ON or OFF.
(OPEN/CLOSE) : Opens and
B
closes the disc tray.
PRESETFOLDER W/S :
-
Searches for a folder of MP3/
WMA les. When a CD/USB
containing MP3/WMA les in
several folders is being played,
press PRESETFOLDER W/S
to select the folder you want to
play.
-
Chooses a preset number for a
radio station.
FUNCTION : Selects the function
and input source.
MUTE@ : Mutes the sound.
VOL +/- : Adjusts speaker volume.
• • • • • •
PROGRAM/MEMORY :
-
Stores radio stations.
-
Creates a playlist you want to
listen to.
USB REC : USB direct recording.
USB SKIP :
• • • • • •
a
• • • • • •
b
Switches between
USB 1 and USB 2.
USB SKIP
Press
in the USB 1/2
mode.
REPEAT (MENU) : Listens to
your tracks/les repeatedly or
randomly.
TUNING-/+ : Selects the radio
stations.
C/V
-
-
Z
-
-
d/M
pauses playback.
SOUND EFFECT : Chooses sound
impressions.
AUTO DJ : Selects the AUTO DJ
mode. (For more information refer
to the page 16)
DEL. : Deletes MP3/WMA les.
(USB only)
• • • • • •
0 to 9 numerical buttons : Selects
numbered tracks, les, or preset
number.
INFO : See information about your
music. MP3 les often come with
ID3 tags. The tag gives the Title,
Artist, Album or Time information.
SLEEP: Sets the system to turn off
automatically at a specified time.
(Dimmer : The display window will
be darkened by half.)
• • • • • •
REGION EQ : Chooses region
equalizer.
(Skip/Search) :
Skips Fast backward or Forward.
Searches for a section within a
track/le.
ENTER :
Stops playback or recording.
Cancels DELETE function.
(Play/Pause) : Starts or
• • • • • •
c
• • • • • •
d
1
Getting Started
Remove the battery cover on the
rear of the Remote Control, and
insert two (size AAA) batteries
with 4 and 5 matched correctly.
Getting Started8
Front panel
1
Getting Started
Getting Started 9
TIMER
a
With the TIMER function you can turn CD, USB
play and TUNER reception on or o at a desired
time.
CLOCK
For setting the clock and checking the time.
SET
Conrms the setting.
(Power)
b
1/!
Backlightings
c
d
I
Stops playback or cancels DELETE function.
e Y
Prev./Scan
CD
f
Selects the CD function.
AUX/PORT. IN
g
Selects the AUX or PORT. IN function.
USER EQ
h
Controls sound register.
WOOFER ON/OFF / DEMO (CM7520)
i
Turns woofer speakers on or o.
Shows demo.
DEMO (CM7420)
Shows demo.
LATIN EQ
j
Chooses locally special equalizer.
AUTO DJ
Selects the AUTO DJ mode. (For more informaion
refer to the page 16)
BASS BLAST
Selects the BASS BLAST or BYPASS sound
directly.
PORT. IN jack
k
MIC jack
MIC VOL.
Display window
l
Volume knob
m
Adjusts speaker volume.
ENTER
n
- Selects a folder when searching a le.
- Selects the BASS, MIDDLE, AND TREBLE when
setting USER EQ.
FOLDER
Moves to folder and le selection mode.
DEL.
Deletes MP3/WMA les. (USB only)
FILE SEARCH
o
Moves to the another track /le.
USB 1/2 Port
p
You can play or record sound les by connecting
the USB device.
USB REC
Records to USB.
ST./MONO
q
T
Starts or pauses playback.
Selects Stereo/Mono.
r
U
Next/Scan
USB 1/2
s
Selects the USB function.
TUNER
t
Selects the TUNER function.
SOUND EFFECT
u
Chooses sound impressions.
(OPEN/CLOSE)
v R
Disc tray
w
1
Getting Started
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